Metallic vessel.



No'. 774,041. PATENTED Nov. 1, 1904.. C. L. 0011111. METALLIC VESSEL.

APPLICATION FILED MAY 4. 1903. lNO MODEL.

na/enor I Char/esl, Coffz 7 1,

u Y um" Mmm.

CHARLES L. COFFIN, OF DETROIT, MICHIGAN, ASSIGNOR TO ELECTRIC METALIVORKING COMPANY, OF DETROIT, MICHIGAN, A CORPORA- TION OF MICHIGAN.

METALLIC VESSEL.

SPECIFICATION forming part of Letters Patent No. 774,041, dated November1, 1904.

Application filed May 4, 1903K Serial No. 155,666. (No model.)

To U/ZZ whom, t may conical/'71,.- Be it known that I, CHARLES L.CoFEIN, citizen of the United States, residing' at Detroit, in thecounty of I/Vayne and State of Michigan, have invented certain new anduseful Improvements in Metallic Vessels, of which `the following is aspecification, reference being had therein to the accompanying drawings.

The invention relates generally to metallic vessels, preferably in theform of sheet-metal kegs or barrels adapted to contain liquids; and itconsists, essentially, in a Vessel formed of complementary sectionsspaced one from another,forming an intermediate chamber for-insulatingpurposes, as will be more fully hereinafter set forth.

The invention further consists in the novel and simple arrangement andcombination of the parts of the vessels and in certain details ofconstruction, as fully illustrated drawings, in which- Figure 1 is aView in elevation of a blank from which the inner section is formed.Fig. 2 represents in vertical section the shaped inner section. Fig. 3is a View similar to Fig. 2, showing the section headed. Fig. 4 is avertical central section through the iinished vessel in the form of akeg, and Fig. 5 is a similar View of a modification.

In the drawings thus briefly described, A represents a cylindrical shellof which the inner section is formed, preferably expanded in anysuitable manner at its ends to form the annular iianges B and C, spacedfrom the cylindrical body D of the section by offsets a. Fitted withinthe expanded ends of the body D are the heads E and F, resting upon theoffsets and carrying annular flanges G. The flanges on the head and bodyabut, as shown, are connected in any suitable manner, preferably bywelding, and constitute end extensions projecting beyond the heads andforming the section-chimes.

Sleeved over the inner section described is an outer shell or casing H,projecting at its ends to the chimes of the inner section and connectedthereto, preferably by welding. As shown, the outer shell is uniformlycylindrical and is spaced circumferentially from the body in the`latented November 1, 1904.

PATENT OFFICE.

of the inner section, forming an intermediate annular air-chamber I. Asthus constructed it will be observed that the air-chamber forms aninsulation about thev body, and thus serves to maintain the liquidcontents of the keg or receptacle at the desired temperature, preventingthe contents from becoming overheated in summer and keeping'it at theproper temperature in colder weather.

For the purpose of insulating the heads of the keg in the same manner asthe body the keg is formed of two closed sections, the inner onepreviously described and an outer casing consisting of the cylindricalshell referred to provided with the `hanged heads J and K, secured tothe'end extensions of the 65 inner section spaced from its heads to formair-chambers L.

To obtain a more rigid construction of package, I preferably shrink achime-hoop M on each end of the keg, each hoop being bent or turned overat its upper edge, as at O, to extend within the head of the outersection.

Bungs are formed in the customary manner in the side of the package whenin barrel form and in the end. Preferably they are apertured plugsthreaded interiorly and riveted to the head and the body of the innersection about suitable openings, as c. The outer portion of each plug isreduced to form a shoulder cl, upon which rest the marginal 8O portionse of the outer section about the openings f. The body-sections of thekeg are so proportioned that the reduced ends of the bung'will projectslightly beyond the outer shell, and in assembling the parts the shellis forced over the projection until the opening in the shell-bodyregisters with the corresponding opening in the inner section. Themarginal portions of theouter member are then flattened or bent downupon the shoulder previously referred to.

In Fig. 5 amodiiied type of Vessel is shown wherein the inner section isuniformly cylindrical in form and the outer section or shell carries theinwardly-extending spacing offsets P and the annularflanges Q.

Hoops R may also be applied to the barrel, as indicated in Fig. 5, thehoops being preferably semicircular in form, flanged as atS, and shrunkupon the keg or'barrel body.

From the description of the invention as set forth it will be apparentthat the inner section is rigidly connected to the outer section ofshell at the extreme ends thereofl only and as thus suspended isprotected from any blow that the barrel may receive except that whichmay strike only the bung. If the barrel receives a blow on the chimes,they merely yield by turning over slightly, while if the body of thebarrel is struck the outer casing yields to the blow and becomes dentedslightly. By affording the protection described to the inner section notonly is a more durable and serviceable barrel structure produced, butthe lining for the interior of the barrel, which is usually of enamel toprevent rusting and permit of the ready cleaning of the barrei, isprevented from being' cracked. A lining of this character isparticularly desirable where the package is to be used for beers or likebeverages where it is necessary to cleanse the barrel frequently.

What I claim as my invention isw 1. A metallic vessel comprising a bodyportion formed of two shells spaced apart, and having their edgesprojected into contact with each other and thence outward to form chimesand iixedly secured together, and hollow heads secured to the extendededges.

2. In a metallic vessel the combination with an inner and an outer shellspaced apart at their centers, having their edges arranged parallelextended outward to form chimes and fixedly united, and heads secured tothe parallel edges.

3. Ametallic vessel consisting of two separated shells arranged onewithin the other, lateral portions on one member extending across thespace between the two and bent to have its ends beyond such lateralportions lie in contact with the end portions of the other member andwelded thereto, of two disk-shaped separated heads secured at eachend,one within the other, and end hoops extending beyond and over theend joint thus formed thereby forming a space between the hoop and edgeof the joint and extending within and resting against the inner head.

4. A metallic vessel consisting of an inner and an outer shell,separated at their middle portion and having at their ends parallelcontacting portions secured together, of a head secured between suchsecuring portions, and hoops at the ends bent over the edge of the jointand resting against the head.

5. A metallic vessel consisting of two shells of uniform length spacedapart in the middle portion and having at their ends parallel contactingportions secured together, of two diskshaped fianged heads one securedwithin the other to form a double-walled head, the flange of the headslying parallel with the securing portions of the vessel ends and securedthereto.

In testimony whereof I afix my signature in presence of two witnesses.

CHARLES L. COFFI N.

Witnesses:

H. C. SMITH, JAs. P.' BARRY.

